The Metzeler Six Days Extreme Supersoft 100/90-19 57M is a rear enduro competition tire developed for extreme enduro and technical off-road racing. Using an ultra-soft “Supersoft” compound, it provides maximum traction on slick rocks, wet roots, and extreme terrain where grip is critical. The tall, widely spaced tread blocks enhance bite and self-cleaning, ensuring consistent traction in mud, wet grass, and loose soil. Its reinforced carcass delivers durability and impact absorption while maintaining flexibility at lower pressures for increased traction in technical climbs and descents. With a 57M load/speed rating, this FIM-approved tire is trusted by top enduro racers worldwide for conditions where maximum grip is the top priority.